CN103595598A - Remote transparent transmission serial server based on fiber and control mode thereof - Google Patents
Remote transparent transmission serial server based on fiber and control mode thereof Download PDFInfo
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Abstract
The invention discloses a remote transparent transmission serial server based on a fiber and a control mode thereof. The remote transparent transmission serial server aims to realize a conversion function of light network data and series data. The technical scheme of the remote transparent transmission serial server comprises a first protocol conversion chip and at least one second protocol conversion chip, wherein the first protocol conversion chip comprises an Ethernet port and a light port and is connected with an MCU for realizing an Ethernet fiber protocol exchange function, the at least second protocol conversion chip can realize control of exchange modes among different data, is connected with the MCU through the first protocol conversion chip and is used for receiving a network data packet for the MCU, after parsing a packet header of the data packet, parsed information is sent by an IP address port number configured according to a configuration menu to corresponding series equipment or a bus, through a connection mode of the at least second protocol conversion chip and the MCU, series data is packaged into a standard network data packet which is sent to the MCU, through connection established by requesting a server, the network data packet is sent to a corresponding network through the MCU.
Description
Technical field
The present invention relates to transfer of data and industrial control field, especially a kind of long-range transparent transmission serial server and control model thereof based on optical fiber.
Background technology
The serial server using is at present a kind of protocol conversion device, and serial server has an Ethernet interface and several Asynchronous Serial Interfaces conventionally, processes on the one hand the data from internet client, by Ethernet interface, sends it to corresponding serial ports; On the other hand, process the data of serial ports, by Ethernet interface, send it to far-end.
Development along with information technology and ethernet technology, in increasing industrial data acquisition system, each side for remote data transmission requires more and more higher, only with Ethernet, carry out transfer of data, limited due to its transmission range and speed, can not meet the communication of remote high speed, use optical fiber to communicate to be undoubtedly a kind of transmission range farther, transmission speed is mode faster.In existing serial server, mostly can only carry out the control of single data exchange mode simultaneously, greatly affect the application efficiency of serial server at Industry Control scene.
And, in existing serial server, mostly by Ethernet, carry out transport communication, also seldom use MII interface to carry out transfer of data simultaneously, this can not meet the demand in market far away, therefore, be badly in need of developing a kind of have several data switch mode and the higher serial server of efficiency of transmission.
Summary of the invention
The invention provides a kind of long-range transparent transmission serial server and control model thereof based on optical fiber, in order to realize the serial server with optical network data and serial data translation function.
A kind of long-range transparent transmission serial server based on optical fiber provided by the invention adopts following technical scheme to realize, and server comprises MCU, power transfer module, the first protocol conversion chip, optical fiber interface, second protocol conversion chip, serial line interface.
By the first association, turn the control model that chip is connected with optical fiber interface, for realizing Ethernet fiber optic protocols function of exchange; By the second association, turn the control model that chip is connected with serial line interface, for realizing the function of exchange of various serial datas; MCU is by turning chip with the first association respectively and the second association turns the control model that chip is connected, for realizing the function of exchange between heterogeneous networks data and different serial datas; By LED, receive and dispatch the control model that indicating module is connected with MCU, be used to indicate serial ports normal operation; The control model being connected with MCU by power transfer module, for providing the normal operation of serial server required voltage; The first association turns between chip and MCU and is connected and can adopts MII Interface realization.
Above technical scheme can be found out, the present invention has following beneficial effect: by fiber optic network, realized long-range high-speed transfer, distance and the speed of transmission are ensured, made up the short and fast not defect of transmission rate of Ethernet transmission range, realize the transparent transmission of serial server simultaneously, guarantee the reliability of transfer of data; Can realize the control of switch mode between different pieces of information simultaneously, by the first association, turn the pattern that chip is connected with MCU, for MCU receiving network data bag, behind resolution data bag packet header, IP address+the port numbers configuring according to configuration menu will parse corresponding port numbers, then packet information is sent to corresponding serial equipment or bus; By the second association, turn the pattern that chip is connected with MCU, the network packet that serial data is packaged into standard sends to MCU, and the connection of setting up according to server data request, sends to the corresponding network port by network packet by MCU.When serial server is done total line traffic control as main controller, there are two kinds of patterns, the one, do total line traffic control of all serial equipments; The 2nd, do the Control on Communication of the serial equipment of appointment.Therefore, in the communications field and Industry Control, be with a wide range of applications.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is application schematic diagram of the present invention;
Fig. 3 is Ethernet of the present invention and serial data exchange process schematic diagram;
Fig. 4 is light mouth of the present invention and serial data exchange process schematic diagram;
Fig. 5 is Ethernet of the present invention and light mouth data exchange process schematic diagram;
Fig. 6 is that RS232 full signal of the present invention is controlled rough schematic;
Fig. 7 is that the two serial ports of RS232/RS485 of the present invention are controlled rough schematic;
Fig. 8 is the total line traffic control rough schematic of ModBUS of the present invention;
Embodiment
Core concept of the present invention: the present invention is integrated into fiber optic protocols in serial server by Networks of Fiber Communications, the Ethernet fiber optic protocols conversion chip using replaces the ethernet controller in existing serial server, thereby make serial server self possess optical fiber communication function, distance and the speed of transmission are ensured, made up the short and fast not defect of transmission rate of Ethernet transmission range, realize the transparent transmission of serial server simultaneously, improved antistatic interference performance, guarantee the fail safe of transfer of data, can realize the control of switch mode between different pieces of information simultaneously, by the first association, turn the pattern that chip is connected with MCU, for MCU receiving network data bag, behind resolution data bag packet header, the IP address port configuring according to configuration menu number sends to corresponding serial equipment or bus by the information parsing, by the second association, turn the pattern that chip is connected with MCU, the network packet that serial data is packaged into standard sends to MCU, and the connection of setting up according to server request, sends to corresponding network by network packet by MCU.For convenience of further understanding, by reference to the accompanying drawings and specific implementation process invention is described in detail.
In conjunction with Fig. 1, comprising: MCU, power transfer module, the first association turn chip, optical fiber interface, second is assisted and turned chip, serial line interface;
Power transfer module, by converting 5v2A Switching Power Supply to 3.3v, for providing the normal operation of serial server required voltage, also can be used stabilized power source, and maximum can be born voltage and be reached 12V;
Described the first association turns chip and is connected with optical fiber interface, for the realization of Ethernet fiber optic protocols function of exchange; In the embodiment of the present invention, the first protocol conversion chip adopts conventional Ethernet fiber optic protocols conversion chip IP113 family chip;
The second association turns chip and is connected with serial line interface, for realizing various different serial port functions; In the embodiment of the present invention, the second association turns chip and can, according to the needs of external interface device, comprise: one or two RS232 chip, to realize the full level of RS232, control; Or a RS232 chip and a RS485 chip, to realize the control of two serial ports; Or a RS485 chip or two RS485 chips, using and realize serial server as main controller, do the total line traffic control of ModBUS.When serial server is done total line traffic control as main controller, there are two kinds of patterns, the one, do total line traffic control of all serial equipments; The 2nd, do the Control on Communication of the serial equipment of appointment;
Described MCU turns chip with the first association respectively and the second association turns chip and is connected, to guarantee that MCU turns chip to the first association and the second association turns the normal control of chip realization, in the embodiment of the present invention, MCU adopts MCF5223X family chip, 32 8-digit microcontroller series mid-to high-end products, there is 32Kbytes internal SRAM and 256Kbytes flash memory, the timer of the DMA request ability of four 32-bit, 4 passage dma controllers, fast Ethernet controller, CAN module, I2CTM module, 3 UART and a queue SPI, guarantee the normal operation of serial server function.
LED transmitting-receiving indicating module is connected with MCU, be used to indicate serial ports normal operation, use green LED indicator light in the embodiment of the present invention, the baud rate set according to system is different, the speed of LED light flicker is also different, and while guaranteeing serial server operation, indication is clear and definite;
Above-mentioned the first association turns between chip and MCU and is connected and can adopts MII Interface realization.
On the basis of above-mentioned hardware, not only can realize the serial server of optical fiber communication function, and in conjunction with the affluent resources of MCU, can also realize A/D data acquisition, and the function such as I//O port controlling, greatly improve the range of application of serial server.
In conjunction with Fig. 2, serial server one end is connected with long-range main website by optical fiber, the data of real-time listening and parsing network service end, once capture after TCP/IP packet, through the processing of main control chip, search current server port numbers, and according to the corresponding port numbers setting before and string slogan relation, transfer data to this corresponding with it serial ports, guarantee the transmission of data efficient; Meanwhile, the other end is connected with external equipment by serial communication interface module, by the data of coming from serial ports, carries out the packing of TCP/IP and processes, and by the processing of serial server, reaches long-range main website.
One, introduce the control model of data exchange process of several typical usage of the embodiment of the present invention below.
In conjunction with Fig. 3, it is the control model of Ethernet and serial data exchange process, from the arrow of dotted line, can find out, network packet is connected to after serial server by Ethernet interface, by the information such as serial ports port numbers in MCU resolution data bag packet header, then extract data message and be repackaged into the packet of standard, the IP address port number configuring according to configuration menu, by the information such as serial ports port numbers that parse, TX mouth and the second association by MCU turn chip RX mouth, send to the second association to turn chip, the second association turns chip and receives after data, send to corresponding serial equipment or bus, same, serial equipment or bus are by Serial Port Information, send to the second association to turn chip, the RX mouth that the second association turns chip receives after data, the TX mouth that turns chip by the second association sends MCU, the connection of setting up according to server request, is reassembled as network packet the Ethernet data bag of standard and sends to Ethernet by MCU and Ethernet interface.
In conjunction with Fig. 4, it is the control model of light mouth and serial data exchange process, from the arrow of dotted line, can find out, optical network data bag is connected to after serial server by optical fiber interface, by the first association, turning chip converts Ethernet data bag to and is sent to MCU, by the information such as serial ports port numbers in MCU resolution data bag packet header, then extract data message and be repackaged into the packet of standard, the IP address port number configuring according to configuration menu, by the information such as serial ports port numbers that parse, TX mouth and the second association by MCU turn chip RX mouth, send to the second association to turn chip, the second association turns chip and receives after data, send to corresponding serial equipment or bus, same, serial equipment or bus are by Serial Port Information, send to the second association to turn chip, the RX mouth that the second association turns chip receives after data, the TX mouth that turns chip by the second association sends to MCU, the connection of setting up according to server request, the Ethernet data bag that network packet is reassembled as to standard is assisted and is turned the data that chip packs the data to fiber optic network form and send to fiber optic network by MCU and first.
In conjunction with Fig. 5, be the control model of Ethernet and light mouth data exchange process, from the arrow of dotted line, can find out, by the first association, turn chip Ethernet data bag is converted to the packet of optical fiber form and sends to fiber optic network; Meanwhile, also optical network data bag can be turned to chip by the first association converts Ethernet data bag to and sends to Ethernet.
The design of the control model that this different pieces of information exchanges, the flexibility that the serial server greatly increasing is used, can meet the use of various industrial environments, when having saved the time, has saved a large amount of costs.
Two, introduce several typical application model of the embodiment of the present invention below.
In conjunction with Fig. 6, by optical fiber interface, turning chip with the first association is connected, RS232 interface equipment turns chip with the second association and is connected, MCU turns chip with the first association respectively and turns with the second association the control model that chip is connected, optical network data is exchanged into the data that RS232 serial equipment can be identified, meanwhile, on the basis based on tri-signal line communications of RS232, can be extended to the communication of full signal line.This control model, has realized telecommunication, makes to transmit providing data formatting simultaneously, can go here and there and change in the lump, and control data transmission speed, carries out error detection, has expanded the function of serial server.
In conjunction with Fig. 7, because this serial server has two Asynchronous Serial Interfaces, so can realize the two serial data transmission of RS232 and RS485, by optical fiber interface, turning chip with the first association is connected, RS232 turns chip with RS485 interface equipment with the second association and is connected, MCU turns chip with the first association respectively and the second association turns the control model that chip is connected, and optical network data is exchanged into the data that RS232 and RS485 serial equipment can be identified.This control model, has strengthened the scope of application of serial server widely, makes outside serial equipment interface use more flexible simultaneously, and various serial equipments are all suitable for.
In conjunction with Fig. 8, by optical fiber interface, turning chip with the first association is connected, RS485 interface equipment turns chip with the second association and is connected, MCU turns chip with the first association respectively and turns with the second association the control model that chip is connected, and optical network data is exchanged into the data that RS485 serial equipment can be identified, simultaneously, based on RS485, carrying out on the basis of serial communication, can by this serial server as main controller, by RS485 bus, carry out various bus protocol control, line traffic control as total in ModBUS.When serial server is done total line traffic control as main controller, there are two kinds of patterns, the one, do total line traffic control of all serial equipments; The 2nd, do the control of the serial equipment of appointment.This control model, adopts hierarchical design thought, when making this serial server realize basic function, in the situation that not changing mainboard, can carry out the control of various buses, flexible and convenient to use, has reduced production cost.In sum, the serial server designing in the embodiment of the present invention comprises Ethernet interface, optical fiber interface and serial line interface, effectively solved the problem that serial server mode of operation is single, transmission range is short, transmission speed is slow, the present invention can be applied under multiple environment, reduced cost.And, by the first association, turn chip and the second association turns chip, realized the control model of various exchanges data, comprise: the exchange of Ethernet data and serial data, the exchange of light mouth data and serial data, and the exchange between Ethernet data and light mouth data, like this pattern control form of several data exchange, having increased greatly the flexibility of product development, is also innovative point of the present invention by the now exchange of data of light cause for gossip.Through strict test and application widely, the application of the serial server that the embodiment of the present invention provides is more extensive, data conversion efficiency is high, stable and reliable operation, antijamming capability are strong, greatly reduces costs.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt complete hardware implementation example, implement software example or in conjunction with the form of the embodiment of software and hardware aspect completely.And the present invention can adopt the form that wherein includes the computer program of implementing in the computer-usable storage medium of computer usable program code one or more.
The present invention is with reference to describing according to flow chart or the block diagram of the method for the embodiment of the present invention, equipment (system) and computer program.Should understand can be in computer program instructions realization flow figure or block diagram each flow process or the flow process in square frame and flow chart or block diagram or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, the instruction of carrying out by the processor of computer or other programmable data processing device is produced for realizing the device in the function of flow process of flow chart or a plurality of flow process or square frame of block diagram or a plurality of square frame appointments.
These computer programs also can be loaded in computer or other programmable data processing device, make to carry out sequence of operations step to produce computer implemented processing on computer or other programmable devices, thereby the instruction of carrying out is provided for realizing the step of the function of appointment in flow process of flow chart or a plurality of flow process or square frame of block diagram or a plurality of square frame on computer or other programmable devices.
Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention the present invention.Like this, if within of the present invention these are revised and modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these changes and modification interior.
Claims (5)
1. the long-range transparent transmission serial server based on optical fiber, comprises that MCU, power transfer module, the first association turn chip, optical fiber interface, second is assisted and turned chip, serial line interface; It is characterized in that: described the first association turns chip and is connected with optical fiber interface, for realizing Ethernet fiber optic protocols function of exchange; Described the second association turns chip and is connected with serial line interface, for realizing various different serial port functions; Described MCU turns chip with the first association respectively and the second association turns chip and is connected.
2. a kind of long-range transparent transmission serial server based on optical fiber according to claim 1, it is characterized in that, MCU is by turning chip with the first association respectively and the second association turns the control model that chip is connected, for realizing the function of exchange between heterogeneous networks data and different serial datas.
3. a kind of long-range transparent transmission serial server based on optical fiber according to claim 1, it is characterized in that, by the first association, turn the pattern that chip is connected with MCU, for MCU receiving network data bag, behind resolution data bag packet header, IP address+the port numbers configuring according to configuration menu will parse corresponding port numbers, then packet information is sent to corresponding serial equipment or bus.
4. a kind of long-range transparent transmission serial server based on optical fiber according to claim 1, it is characterized in that: by the second association, turn the pattern that chip is connected with MCU, the network packet that serial data is packaged into standard sends to MCU, the connection of setting up according to server data request, sends to the corresponding network port by network packet by MCU.
5. a kind of long-range transparent transmission serial server based on optical fiber according to claim 1, also comprises: when serial server is done total line traffic control as main controller, there are two kinds of patterns, and the one, do total line traffic control of all serial equipments; The 2nd, do the Control on Communication of the serial equipment of appointment.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104811350A (en) * | 2015-03-27 | 2015-07-29 | 深圳极智联合科技股份有限公司 | Test system and method of optical network units |
| CN104821885A (en) * | 2015-04-07 | 2015-08-05 | 安徽康海时代科技有限公司 | Telecommunication terminal server |
| CN104901740A (en) * | 2015-04-07 | 2015-09-09 | 安徽康海时代科技有限公司 | Optical fiber serial server and local area network |
| CN104967481A (en) * | 2015-04-07 | 2015-10-07 | 安徽康海时代科技有限公司 | Fiber serial server network system |
| CN105677529A (en) * | 2016-01-05 | 2016-06-15 | 太仓市同维电子有限公司 | Method for mainboard troubleshooting through internet access connecting equipment |
| CN107241382A (en) * | 2017-04-24 | 2017-10-10 | 天津瑞能电气有限公司 | For the data transfer device and its device between serial ports and Ethernet |
| CN109977052A (en) * | 2019-04-02 | 2019-07-05 | 上海卓岚信息科技有限公司 | System, medium, chip and the electronic equipment of method for converting protocol and application this method |
| CN111555901A (en) * | 2020-03-16 | 2020-08-18 | 中国人民解放军战略支援部队信息工程大学 | Chip configuration network system for flexibly supporting hybrid bus protocol |
| CN112202657A (en) * | 2020-10-15 | 2021-01-08 | 江苏新安电器股份有限公司 | Digital multiplexing communication method |
| CN114567671A (en) * | 2022-02-25 | 2022-05-31 | 北京百度网讯科技有限公司 | ARM server and data transmission method |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104811350A (en) * | 2015-03-27 | 2015-07-29 | 深圳极智联合科技股份有限公司 | Test system and method of optical network units |
| CN104821885A (en) * | 2015-04-07 | 2015-08-05 | 安徽康海时代科技有限公司 | Telecommunication terminal server |
| CN104901740A (en) * | 2015-04-07 | 2015-09-09 | 安徽康海时代科技有限公司 | Optical fiber serial server and local area network |
| CN104967481A (en) * | 2015-04-07 | 2015-10-07 | 安徽康海时代科技有限公司 | Fiber serial server network system |
| CN105677529A (en) * | 2016-01-05 | 2016-06-15 | 太仓市同维电子有限公司 | Method for mainboard troubleshooting through internet access connecting equipment |
| CN107241382B (en) * | 2017-04-24 | 2023-10-03 | 天津瑞能电气有限公司 | Data conversion method and device used between serial port and Ethernet |
| CN107241382A (en) * | 2017-04-24 | 2017-10-10 | 天津瑞能电气有限公司 | For the data transfer device and its device between serial ports and Ethernet |
| CN109977052A (en) * | 2019-04-02 | 2019-07-05 | 上海卓岚信息科技有限公司 | System, medium, chip and the electronic equipment of method for converting protocol and application this method |
| CN109977052B (en) * | 2019-04-02 | 2024-04-30 | 上海卓岚信息科技有限公司 | Protocol conversion method, system, medium, chip and electronic device applying the method |
| CN111555901B (en) * | 2020-03-16 | 2022-08-12 | 中国人民解放军战略支援部队信息工程大学 | Chip configuration network system for flexibly supporting hybrid bus protocol |
| CN111555901A (en) * | 2020-03-16 | 2020-08-18 | 中国人民解放军战略支援部队信息工程大学 | Chip configuration network system for flexibly supporting hybrid bus protocol |
| CN112202657A (en) * | 2020-10-15 | 2021-01-08 | 江苏新安电器股份有限公司 | Digital multiplexing communication method |
| CN114567671A (en) * | 2022-02-25 | 2022-05-31 | 北京百度网讯科技有限公司 | ARM server and data transmission method |
| CN114567671B (en) * | 2022-02-25 | 2024-03-19 | 北京百度网讯科技有限公司 | ARM server and data transmission method |
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Application publication date: 20140219 |